How do you differentiate between On Follow Up Date and Off Treatment Date?

How do you differentiate between On Follow Up Date and Off Treatment Date?

On Follow Up date  is the first  actual protocol-defined follow up visit date  and  will be on or after the  Off  Treatment  date. For example, depending on your protocol, the EOT visit may be the last On Study date and the first On Follow Up date.

The  Off  Treatment  date is the date the study subject stops receiving the study intervention or when the study treatment or procedure the study is tracking ends.